Genus Mahuna Distant, 1907

Museums

Regional Maps

• Mahuna Distant, W.L. 1907. Rhynchotal Notes. xli. Annals and Magazine of Natural History 7 19: 277-295 [290].

  Type species:

   Mahuna conspersa Distant, 1907 by original designation.
• Tabiana Jacobi, A. 1928. Results of Dr E. Mjöberg's Swedish Scientific Expeditions to Australia 1910-1913. Rhynchota, Homoptera. 1. Fulgoridae und Cercopidae. Arkiv för Zoologi 19A(28): 1-50 [28].

  Type species:

   Tabiana viridicans Jacobi, 1928 by original designation.

Taxonomic Decision for Synonymy

• Fennah, R.G. 1950. A generic revision of the Achilidae (Homoptera: Fulgoroidea). Bulletin of the British Museum (Natural History) 1(1): 1-170 [115]

Introduction

A genus of four nominal species, all described from the wet tropics of N. Queensland. The species are small (4–8 mm) and mainly greenish white with various brown speckling. Fennah (1950) synonymised Tabiana Jacobi which included three species described by Jacobi (1928) but Fennah did not mention the new combinations created by his synonymy. It is possible that Mahuna conspersa has a synonym amongst Jacobi's three species.

Distribution

States

Queensland

IBRA and IMCRA regions

IBRA

Wet Tropics (WT) ; Qld: Wet Tropics (WT)

Diagnosis

Head with eyes distinctly narrower than pronotum. Vertex not declivous, broader across base than long in middle line (1.7:1), produced before eyes for three-eights of their length, median carina present except at extreme apex, disk distinctly depressed, anterior margin carinate, forming an angle of 120º at apex, lateral margins carinate, straight, diverging basad, posterior margin excavate (about 130º), frons slightly convex in profile, longer in middle line than broad, widest part fully twice as wide as base, basal margin slightly excavate, median carina percurrent, lateral margins carinate, slightly foliate laterally, convex, diverging to below level of antennae thence incurved to suture, disk of frons not impressed; clypeus about two-thirds length of frons, medially and laterally carinate, rostrum with subapical segment shorter than apical, antennae subglobose, not sunk in a depression, ocelli separated from eyes, eyes not covering pronotum. Pronotum short, at least as long behind eyes as in middle line, anterior margin of disk convex-truncate, posterior margin angulately excavate (about 110º), median carina present, lateral carinae of disk convex, each three times as long as median carina, attaining hind margin, pronotum laterad of disk slightly inclined anteroventrally, ventral margins of lateral lobes oblique; mesonotum longer than vertex and pronotum together, tricarinate, pro-tibiae shorter than pro-femora with trochanters, post-tibiae with a single spine basad of middle. Tegmina three times as long as broad, costal margin slightly convex, sutural margin forming a re-entrant angle of 155º at apex of clavus, Sc+R fork almost level with Cu1 fork, both scarcely distad of union of claval veins, M forked level with node, nine apical areoles distad of stigmal cell; clavus terminating distad of middle of tegmen. Wings with R two-branched, M two-branched, Cu1 three-branched. (Fennah 1950)

Mahuna is distinguished by the shape of the vertex and pronotum and by the tegminal venation (Fennah 1950)

ID Keys

Fennah 1950: 47

Diagnosis References

Fennah, R.G. 1950. A generic revision of the Achilidae (Homoptera: Fulgoroidea). Bulletin of the British Museum (Natural History) 1(1): 1-170 [115]

History of changes